https://blog.vonng.com/en/tags/machine-learning/Recent content in Machine Learning on VONNGHugoen-USMon, 13 Jul 2026 00:00:00 +0000https://blog.vonng.com/en/ai/world-model/Mon, 13 Jul 2026 00:00:00 +0000https://blog.vonng.com/en/ai/world-model/Starting from the roots of “world” and “model,” this essay uses Pearl’s ladder of causation to redefine world models: they must capture not just space and time, but agents, interventions, and counterfactuals.https://blog.vonng.com/en/ai/cerebellum/Wed, 10 Jun 2026 00:00:00 +0000https://blog.vonng.com/en/ai/cerebellum/The cerebellum changed how I see AI’s frontier: LLMs have already absorbed humanity’s explicit knowledge and are beginning to acquire interventional data through agentic RL. What they still lack is a vessel for individual history.https://blog.vonng.com/en/pg/knn-optimize/Wed, 06 Jun 2018 00:00:00 +0000https://blog.vonng.com/en/pg/knn-optimize/Ultimate optimization of KNN problems, from traditional relational design to PostGIShttps://blog.vonng.com/en/pg/pg-recsys/Wed, 05 Apr 2017 00:00:00 +0000https://blog.vonng.com/en/pg/pg-recsys/Five minutes, PostgreSQL, and the MovieLens dataset—that’s all you need to implement a classic item-based collaborative filtering recommender.